Optimal method for saving authenticated user in redux state

I am currently working on developing an application with the following technologies:

  • Next.js
  • An Express API
  • Redux-Toolkit and RTK Query

All of the authentication logic has been implemented successfully, but I have encountered a problem.

After a successful login, the Express API sends back two httponly cookies containing the access and refresh tokens.

In my API, there is an endpoint to retrieve the current user using the access token, located at /api/auth/me

Everything is functioning properly. However, I am struggling to determine the best approach to fetch the user on each page load and store them in the Redux state.

Should I utilize RTK Query to call the /api/auth/me endpoint and invoke the query whenever needed across the application?

Ideally, I would like to fetch and set the user in _app.tsx, but I am unable to use Redux dispatch since it falls outside of the 

<Provider store={store}></Provider>

For example, if I wanted to access the user stored in Redux in getServerSideProps, I am unable to do so as it is not client-side and does not have access to Redux.

I am facing difficulty in finding an efficient method to simply set the authenticated user and utilize them globally within the application, whether it be inside the Redux store or in scenarios like getServerSideProps.

Any guidance or suggestions would be greatly appreciated as I am feeling quite disoriented at the moment.

expressreduxnext.js

Answer №1

To maintain authentication state, one method is to save the token in local storage. Within the main App component, you can verify if the token exists in the redux store. If it is not found, you can manually set it using the useEffect function.

For example:

useEffect(() => {
fetchAuthTokenFromLocalStorage().then((token) => {
  dispatch(setAuthenticationResult(token));
});},[dispatch]);

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